Antique or Vintage Copper Etched Moroccan? Mandela Pattern Tray Dish Plate Round

This plate was found at an estate sale in New England. My best guess based on research is that it is a Moroccan made or patterned etched copper piece. A mandela pattern with etched bordering. Please review all photos. There is a beautiful, aged patina to it. Looks to be a true vintage or antique piece. I will leave cleaning to the buyer. Not magnetic. Some warping to top edge but sits flat on table. Approx diameter is 13 inches. 3/4 inch height. Other measurements in photo. Weighs 1 lb 8.5 ounces No makers mark. Round, engraved or etched design. Most likely handmade piece. Questions welcome.