In Italy they say in the plate like native English speakers say on the plate, if that helps...@jamescassell
It said another solution was "Our cakes are in the plate", but logically something cannot be in a plate. WTF?
There are different kinds of cakes of varying types/sizes and different types of plates of varying sizes. So, yes, they can be on one plate.
Italians see plates as more of a vessel, like the way we would see a bowl, so they would say in the plate rather than on the plate, although but are acceptable as far as i know.
Because in Italian you always have to put the article in front of the name. In this case you put il because it is a male article. About the plurals: regular male names end in -o and at the plural they end in -i: piatto piatti. Feminine regular names end in -a at the singular and at the plural they end in -e. But there are several exceptions: for example il giornale (m., newspaper) ends in -e but it is masculine singular, and its plural is i giornali, that is regular. But you will help because the name is always with an article, which is ALWAYS BEFORE THE NAME. So remember very well the articles (il, lo m. sing.; la f. sing.; i, gli m. plur.; le f. sing.)
Excuse me, I haven't read the question. However, above there is a grammatical rule, and also in this answer. In Italian there are prepositions: di (of), a(at,to,in), da(from, by, for or since, at), in (in), con (with), su (on), per(to, for, across, along, through), tra, fra(both tra and fra mean between or among)
Sometimes these prepositions become an only form: the preposizioni articolate. They are simply the union of the preposition you want to use and the article of the name with you want to use that preposition. For example: Il cane è sul tavolo(The dog is on the table). Sul is su+il. Sto camminando sulla banchina della strada (I'm walking on the shoulder of the road). Sulla is su+la. Per, tra and fra don't want the article, so you use on of these prepositions at the normal form followed by the article. Con doesn't want the article but two forms can have the article: con+il (becomes col) and con+i (becomes coi). I hope to be clear and helpful, but search on websites these things, surely they are explained in more technical manner
It's just the way Italian works. See turtleonastick's answer to joannemarion.
Can someone please help me how and when to use this words nostro, nostra and nostri, because it is confusing me
The plural of piatto is piatti, and in that case you would also have to change nel to nelli, but that isn't really a problem here. There could be a number of small cakes on one plate.