Some of my fraternity brothers did this exact thing for their bar top. Be sure to glue the bottle caps down first so they don't move when you pour in the epoxy. That epoxy resin looks like a good choice, just make sure you mix it exactly as the directions say.
And make sure you get enough of it to fill in the top of the table. Their first try they didn't have enough and it made a clear mound in the middle of the bar top instead of a nice coating. Had to start all over, including collecting more bottle caps.
I have to say when it was done, I was amazed. That bar is still in the fraternity house after almost a decade of abuse.