What does A800 mean when it appears on silverware?

The marking "A800" on silverware indicates that the item is made of an alloy containing 80% silver and 20% other metals, typically copper. The "A" usually signifies that it is a form of silver-plated metal or an alternative silver alloy, as opposed to sterling silver, which is 92.5% silver. This marking helps consumers identify the quality and composition of the silverware.