Drill holes in the floors for electrical wiring to pass through and treat the hole to resist fire. Use a mechanical shaft (for example, the garbage disposal chute) to bring electrical wiring together and reduce the amount of work.
Image c/o: KK Law
Advice
Example of a mainly successful project: Brock Commons — involved a high degree of collaboration: Integrated Design Process — design offered 3-4 options for every connection, which every stakeholder vetted — invested in building a mock-up, where many problems were solved in advance of construction — the design worked with standard panel sizes
Advice
Tolerances are different for each different trade. Mitigate potential problems with communication in the procurement phase.