Simone, there’s really no standard as to no of sts, etc. It’s based on your gauge. If your yarn is DK the no of sts will result in a much smaller item than if bulky. Decide how wide you want the finished piece. For instance, if you want it 60" wide, and your gauge swatch is 6 sts/inch, you’d need to CO 360 sts (6x60). But if your gauge is bulkier…3 sts/inch…you’d only need 180 sts.
As for rows, is the logo the entire piece or just part of it? The logo is rather shallow, in terms of depth, so the finished piece will be long and narrow if you don’t add above and below it. Your finished piece should be a strong rectangle or square, and if for your dad, sized accordingly. Quite a few adult afghans are 72" but if meant to be a laprobe, of sorts, can be much smaller.