Question

What changes take place in the negative electrode during the electroplating of an article?

Answer 1

An easy-to-understand explanation of how plating is used to coat metals with a thin layer of gold, silver, tin, zinc, ... It takes time for electroplated atoms to build up on the surface of the negative the  negative electrode should be the object that is to be electroplated; The positive electrode should be the metal that you want to coat ... This arrangement can also be used to purify copper during copper manufacture.

Answer 2

if we considered the zinc sulphate solution than the zinc sulphate breaks through two component zn+2and so4^2-than the neagtive electrode in the solution attract zn+^2 so the rod get electroplated with zinc metals