Question

name the process of coating a metal on another metal draw a neat diagram related to this process and label the parts

Answer 1

The process is electroplating.
For Eg: take electroplating of an article with Nickel.

NiSO4 

At cathode:
Ni²+  + 2e -  ---------> Ni [metal deposited]

At anode:
Ni - 2e-  ------------> Ni²+ [ ions discharged]

Hope it helps...............