It depends. If your hernia is very large and/or you have thinned out tissues (muscle/fascia), a tummy tuck may not be possible. Liposuction (lipoplasty) is contraindicated if you have a known hernia so that should be done after your hernia is repaired or after you've recovered from your hernia surgery.

If you have a small hernia that is easily fixable and good tissues, a concomitant tummy tuck is certainly a possibility if you're willing to accept the risks of surgery. Combining liposuction with a tummy tuck also increases risk for complications, and I would personally be hesitant to do both procedures at the same time as a hernia repair.