How much space is between the wall and the mirror frame edge?

The mirror frame is 1.25" away from the wall.

Is the "polished silver" finish on this mirror a good match to chrome faucets and fixtures?

Did you purchase? If so, does it look good with chrome?

Are the mounts adjustable in size? My wall is oval, so it could be a little different in size On echo side of mirror

No the side mounts are fixed to the frame. This mirror is extremely heavy, I’d say about 40 lbs. if I knew it was that heavy I wouldn’t have ordered it, definitely needs to be secured to a stud. Also shipping was almost 2 weeks late. Hope this helps, good luck!