By: Steph Magill

 Electroplating- The process of coating an electrically conducting surface with a thin layer (seldom more than in [0.025 mm] thick) of metal by electrolytic deposition.

 One use for electroplating is covering zinc with copper in making coinage.  To Protect steel or other metals from rusting. Fore example metal bumpers on trucks.  To Make cans which are made from steel electroplated with tin. Which is good for foods.

 The process of electroplating causes redox reactions. We talked about redox reactions in class earlier. Which is an oxidation – reduction reaction.  Cations and Anions also deal with electroplating because cations of most metallic substances can be reduced, this fact is exploited in electroplating.  We learned about oxidation and reduction. This relates to electroplating because in the electroplating process oxidation is called Anode and reduction is called Cathode.

 This is a metallic object that needs to be a plate with a metal. First it fills a cell with a solution of a salt of the metal to be plated. Most of the time the salt (nickel chloride in the example) is simply dissolved in water and a little acid.

An example of a gold-plating cell.

The spoon is being reduced and is attracting the oxidized Ag+ ions which plates the spoon in Silver atoms.

 Name one use for electroplating.  What is oxidation and reduction called in electroplating?

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