Run a little test on a piece of the laminate that you won't be using to make sure the table of your router is not going to scratch the formica. Sometimes the screws are sticking out on a router table (bottom surface of the router) and it can scratch the laminate as you move the router around.
God grant me the strength to restore the trailers I can, The courage to strip the parts off the ones I can't, And the wisdom to know the difference...
You can also affix masking tape on the cut line to keep the laminate from breaking off as you go.
With a good sharp bit that won't be a problem. Make sure to buy a bit made for formica cutting. It's is beveled just a slight bit. I can't remember by how many degrees but it's just a few. That is done so you have what looks like finished corners where formica meets formica.