How many cell layers are in an Elodea leaf?

there are 2 layers. one for each side. like a sandwich and the layers are the bread. there are two of them so they can hold together the inside :]

4 - counting the cuticle, without it it is just 2

THis is a really difficult question and i as a middle school biology student have decided that it may just be 5 cell layers thick. This is tidie signing out.

Depends on the type of plant, as with animals plants have varying chromosome counts