Grafco 3261 Flat Type Instrument Tray, Stainless Steel, 13-5/8" x 9-3/4" x 5/8"

Can you use this to cook with?

Please tell me the inner measurements of both sizes of this tray.

Is there a lip around the edge of the tray to fit into a mayo stand? Also where is it measured from?

Will magnets stick to this?