Electroplating

Electroplating: Deposition of corrosion resistant metal (Au, Ag, Cr, Ni, Zn, Pb) over the base metal by passing electric current through an electrolyte solution containing soluble salt of coating metal.

Anode: Rod of metal to be deposited
Cathode: Base metal (thoroughly cleaned)
Electrolyte: Metallic ions solution

Ex:

Electroplating

at anode  → Ag(s)       → Ag(aq)+ e
at anode →  Ag(aq)+ e→ Ag(s)

When current is passed  metal ions from electrolyte deposit of cathode and equal number of metal ions are added to the electrolyte from anode.