What is the simplest way to clean a tarnished silver spoon

What is the simplest way to clean a tarnished silver spoon  

Cutlery or ornaments made of silver tarnish and become black this is a shame, because clean, shiny silver is very attractive. The tarnish comprises a thin layer of silver that has oxidized following contact with the air to form black silver(I) oxide  

Such silver can be rather difficult to clean without abrasives (which wear away the metal). The following is a simple electrochemical means of cleaning the silver immerse the tarnished silver in a saucer of electrolyte, such as salt solution or vinegar, and wrap it in a piece of aluminium foil. Within a few minutes the silver is cleaner and bright, whereas the aluminium has lost some of its shininess. 

The shine from the aluminium is lost as atoms on the surface of the foil are oxidized to form Al3+ ions (Equation (7.1)), which diffuse into solution. Because the aluminium touches the silver, the electrons generated by Equation (7.1) enter the silver and cause electro-reduction of the surface layer of Ag20 (Equation (7.2)). 

In summary, we construct a simple electrochemical cell in which the silver to be cleaned is the cathode (Equation (7.2)) and aluminium foil as the anode supplies the electrons via Equation (7.1). 

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