BIG-IP Trunk Configuration Pre-Requisites

Is it possible to create a trunk containing copper and SFP ports on the BIG-IP?

i think it is possible to mix interface type and also speed but some interface may not be selected because the speed is different from others.

The other requisite (In fact it is just an F5 recommendation) is that IF POSSIBLE, the number of links in the trunk be a power of 2 (for example 2, 4 or 8). Again this is a recommendation not a rule.

yes, it is the best practice. it works even number of trunk members is not a power of 2 but you may see uneven traffic distribution between trunk member interface.