Tried and tested since 1780: The process of electroplating, also known as galvanization, was named after the Italian doctor Luigi Galvani, who discovered this special type of electrolysis purely by chance. Functional electroplating is used mainly to protect surfaces from corrosion and wear, to improve electrical conductivity or to reduce frictional forces. But electroplating can also be used to gold-plate jewelry.
Electroplating uses electrolysis: The object to be coated acts as the cathode, while the metal to be applied acts as the anode. Electricity is applied to the electrolytic bath containing the two metals and the freed metal ions are deposited on the material to be coated through reduction.