Anodized items are generally dishwasher safe and scratch safe from other metals. It does depend on the process and quality of the anodizing though. However, 36 bucks for a small tray to hold "something" with no magnets, I mean, there's just no reason for these to exist.
You sir would be looking for "the peach tray V2" from ashkeebs.com
They have a copper, greyish green and exclusive purple color. Very well made and cerakoted/anodized and has 6 neonydium magnets as well as rubber pads on on the bottom for grip and so it doesn't scratch nice wood desks if you don't use a deskmat. I own 2 so highly recommend them (this is not a paid advertisement I just got tired of seeing $50 anodized aluminum trays or brass but not a single one of them from these exclusive niche companies ever had a single magnet in them much less neonydium magnets. Which makes them just plain useless expensive anodized plates and bowls