I'm not sure that's enough metal content to be any factor. Quite frankly, I've never seen posted on this forum the level where metals become problematic.

If it were my pool, I think I'd shock it to kill the algae and then deal with the metal issues if they appear.

Handy, that copper probably got there by adding something to your pool that had copper in it (at some point in time). Generally, I would discourage you from using anything with copper.