This book examines the detailed study on the electrochemical oxidation and corrosion of metals (silver, copper and their alloys) in concentrated aqueous electrolytes solutions. The influence of electronegative (copper) and electropositive (palladium) constituents on the rate and mechanism of the silver as a constituent of a binary alloy during electro-oxidation in non-steady-state condition is revealed. Mechanisms of electrode processes which include electrochemical reactions of the phase films formation and both chemical and electrochemical stages of their transformation are offered.