The coating produced by this process is soft, with high purity. After treatment with a silver protective agent, it has good anti-discoloration performance and excellent weldability. The Ag-100 coating has good conductivity and low contact resistance. The process has a wide operating range, and satisfactory brightness can be achieved even at low current densities. This process can be used for both rack and barrel plating and can also be used to electroplate nickel, bronze, and brass copper substrates.