The amount of product produced during electrolysis

The chemical nature of the products of electrolysis is determined by the reduction potential of the appropriate redox couple. The amount of product formed depends only on the amount of electricity that has passed through the cell. This fact was first recognised by Faraday, who formulated what are now known as Faradays laws of electrolysis  

The mass of substance produced at an electrode is directly proportional to the quantity of electricity that has passed through the cell  

The mass of a substance produced by a given quantity of electricity is directly proportional to the molar mass of the substance and inversely proportional to the numbers of electrons transferred per molecule of the substance. 

The amount of electricity that is provided in an electrolysis experiment, Q, is given by  

This is called the Faraday constant, F. Thus, the quantity of electricity needed to produce one mole 

---