Can we translate: Can you count coins at all?
as Can you count coins in any way?
The problem is the meaning of this "at all".
It's close. In this case "at all" would mean "with even a small amount of competence."
I can get by in French but I can't speak Arabic at all.
I'm good at math, but for some reason, I can't understand financial discussion at all.
I have zero proficiency in Arabic. I have no understanding of finance.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.