A large sterling silver tea tray by Henry Birks and Sons, Montreal 1945. This Birks sterling silver tea tray is in the George III style, oval with molded border and acanthus capped scroll handles, on four bun feet. 27 1⁄8" (69cm) long, 18 1⁄8" (46cm) wide, 108 troy oz. (3359g).
The last photo shows this set paired with a matching https://justinteeantiques.com/product/birks-sterling-silver-tea-service-3/">Birks Tea Set (sku 04211).